Water Treatmentwith Reverse Osmosis Technology

TEMAK is a leading Greek manufacturing company in the water treatment industry since 1980, operating in the domestic and foreign markets. Our mission is to keep our customers satisfied offering fully integrated water solutions, designed and manufactured according to their customers’ needs.

The structure and operation of TEMAK is based on the most up-to-date management techniques and practices, so as to promptly and efficiently respond to every need of each customer.

We can be your Reverse Osmosis (RO) ideal partner!

• The ideal solutions are designed from the very begin-ning based exclusively upon the special needs and re-quirements of each customer

• These solutions are integrated on a highly professional basis, at all project stages: Design, manufacturing, instal-lation and after sales support

• High quality services are provided, regardless of the size of the project we are working on

Based on these principles, TEMAK studies, designs, manufactures, installs and supports the proper solution that fits exactly in each specific situation. Besides our know-how, our everyday close contact and service to the market is a major point of our offering. This constitutes the basis of our performance and on this basis we gain our customers’ trust, because we understand very well their needs, therefore, we can demonstrate the benefit of the solution.

Premises 5.000 m2 in Acharnes (Menidi), Athens, Greece

TEMAKPROVIDES

• Scientific and technical personnel with many years of experience

• Surveys, studies and investment proposals• High quality construction with the best con-

struction materials and components• Well organized, fast and efficient service

• Continuous stock of spare parts• Modern facilities and infrastructure• Reference list with numerous satisfied customers• Guarantee• Customization

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ApplicationsSectors

Potable Water

Production

BoilersFeed

WaterIrrigation

Deionization for the

ApplicationsDemands

Final Stageof BiologicalTreatment

Network /Equipment

Protection fromScaling

Ultra-PureWater

Production

IceProduction

Buildings & Residential

Chemical Industry

Fish Farms

Food & Beverages

Green Houses

Hemodialysis Centers

Hospitals

Hotels & Tourist Villages

Laboratories

Marine

Metallurgy & Aluminium

Municipalities

Paper Industry

Pharma & Cosmetics

Photovoltaic Solar Panels

Power Plants

Restaurants & Kitchens

Semiconductor Industry

Spin, Textile & Dyeing Houses

Washing Stations

Water Bottling

Due to the global increase of impure water, the fastest and most applied widely method of modernwater treatment is the Reverse Osmosis.

Principle of Reverse Osmosis (RO)

Osmosis

Low Concentration

Solution

High Concentration

Solution

Semi-Permeable Membrane

Pressure

Low Concentration

Solution

High Concentration

Solution

Osmotic Pressure

Semi-Permeable Membrane

Reverse Osmosis

But what is Reverse Osmosis?OSMOSIS

When two solutions of different concentration are separated with a semi-permeable membrane, pure water is transferred through the membrane from the lower to the higher concentration solution (osmotic flow).

The osmotic flow continues until an equilibrium is achieved, where the level of the higher concentration solution settles at a level higher than the initial one.

The difference between the levels of the two solutions causes the so-called osmotic pressure.

REVERSE OSMOSIS Reversing the process, if an external pressure greater than the osmotic pressure is applied on the higher concentration solution, pure water is transferred through the membrane towards the low concentration solution.This process is called Reverse Osmosis.

Low Concentration

Solution

High Concentration

Solution

Semi-Permeable Membrane

Reverse Osmosis

Brackish Water RΟ Units

! Complete Water Treatment Systems for Haemodialysis Centers certified according to Annex V of theMedical Device Directive 93/42/EEC

TBW 2 TBW 3TBW 1

• High pressure pipes of TBW 21 up to TBW 28 for high brackish water are made of stainless steel duplex SAF 2205 & 316Ti

• Electronic control panel, separate from the main electric switchboard, with user friendly mimic diagram of the process, provides all necessary information for every part's operation and functions at low voltage 24V for safe information

• Recovery and absorbed power for brackish water RO systems depend on the quality (ppm TDS) and tempera-ture of the raw water

On Request• Mobile desalination stations ergonomically installed in

steel containers with sound and thermal insulation• Custom-made desalination plants designed according

to customers specifications• Instrumentation’s output signal transmition to a control

room or to a PC for remote supervision (SCADA). Au-tomatic notifications on your mobile phone in case of a system alarm

ModelMax Production

(m3/24hrs)Model

Max Production(m3/24hrs)

ModelMax Production

(m3/24hrs)

TBW 11 2,4 TBW 32 67,2 TBW 315 432,0TBW12 4,8 TBW 33 100,8 TBW 316 451,2TBW 21 7,2 TBW 34 127,2 TBW 318 528,0TBW 22 13,9 TBW 36 177,6 TBW 320 588,0TBW 23 19,9 TBW 38 225,6 ΤBW 324 720,0TBW 24 25,2 TBW 39 276,0 TBW 330 900,0TBW 25 30,2 TBW 310 302,4 TBW 336 1080,0TBW 26 39,8 TBW 312 345,6 TBW 340 1248,0ΤBW 28 50,4

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ModelMax

Production(m3/24hrs)

NominalPower (kw)

Energy(kWh/m3)

Recovery%

Units With Energy Recovery Device

ModelMax

Production(m3/24hrs)

NominalPower (kw)

Energy(kWh/m3)

Recovery%

TSW 01 0,84 1,8 42,8 5,8 TSW 324HP 381 75,0 4,4 42TSW 02 1,68 1,8 21,4 11,7 TSW 332HP 509 90,0 4,2 42TSW 03 2,4 1,8 15,0 16,7 TSW 340HP 636 110,0 4,1 44TSW 11 2,1 2,2 30,3 9,0 TSW 348HP 763 132,0 3,5 42TSW 12 4,1 2,2 16,4 17,0 TSW 356HP 890 160,0 3,5 42TSW 13 5,7 2,2 11,7 24,0 TSW 364HP 1021 200,0 3,6 42TSW 14 6,9 2,2 9,5 29,0 TSW 38PX 127 20,6 3,0 42TSW 16 9,1 2,2 7,4 38,0 TSW 310PX 153 24,1 3,1 42TSW 18 10,6 2,2 6,5 44,0 TSW 314PX 211 25,8 2,8 42TSW 19 11,0 2,2 6.2 46,0 TSW 316PX 262 38,5 2,8 42TSW 22 10,5 7,5 13,6 17,6 TSW 324PX 381 59,5 2,8 42TSW 23 14,4 7,5 9,8 24,0 TSW 332PX 509 76,5 2,8 42TSW 24 17,7 7,5 8,0 29,6 TSW 340PX 636 97,0 2,8 42TSW 26 22,0 7,5 6,3 36,8 TSW 348PX 763 117,0 2,8 42

TSW 24A 21,1 15,0 13,6 17,6 TSW 356PX 890 132,0 2,8 42TSW 26A 28,8 15,0 9,8 24,0 TSW 364PX 1021 172,0 2,8 44TSW 28A 33,6 15,0 8,1 28,0

On Request• Mobile desalination stations ergonomically installed in

steel containers with sound and thermal insulation• Custom-made desalination plants designed according to

customers specifications• Instrumentation's output signal can be transmitted to a

control room or to a PC for remote supervision (SCADA). Automatic notification on your mobile phone in case of a system alarm

• Marine type desalination systems, specially designed for the vessels' restricted space

TSW 32SP 33,6 15,0 9,2 22,0TSW 32 38,4 18,5 10,7 20,0

TSW 33SP 44,2 15,0 6,9 28,7TSW 33 52,8 18,5 7,9 27,5

TSW 34SP 57,6 15,0 5,7 37,5TSW 34 64,8 18,5 6,5 34,0TSW 36 79,2 18,5 5,3 41,0TSW 38 105,6 22,0 5,2 43,0

TSW 312 158,4 37,0 5,3 41,0TSW 316 211,2 44,0 5,2 43,0TSW 324 316,8 66,0 5,2 43,0

Sea Water RO Units

TSW 1 MARINE TSW 3 MARINETSW 2

• Max production flow rate and energy consumption are calculated for TDS = 42,000 ppm, Temp = 200 C and foul-ing factor = 0.85

• High pressure piping by super duplex stainless steel SAF 2507

• High pressure pump by super duplex stainless steel SAF 2507

• Pressure Exchangers for specific power consumption2.8 kWh/m3 of product water

• Electronic control panel, different than the main electric power switchboard, with user friendly mimic diagram of the process, provides all necessary info for every part's operation and functions at low voltage 24V for safe operation

• The specific energy consumption depends on the feed-water quality (ppm TDS) and temperature. It is calculat-ed separately in each application

C.I.P. andFlush Tank

Feed Water To Tank

Feed Water Tank

Turbidity Filters Drain Tank

Drainage

Safety Filters

Energy Recovery System (PX)

Power Panel

High Pressure

Pump

Product Water300 m3/day

1st Pass Pressure Pumps

High Pressure Pumps of 2nd Pass RO

2nd Pass of Reverse Osmosis

CIP Pump

2nd Pass RODrain

Flush Tank of 1st Pass

RO

Feed Water Tank of 1st Pass Reverse Osmosis

Dosing System

Ultra Filtration System

RawWater

Feed Pumps

300 m3/day water for general use - Mobile Containerized Sea Water Reverse Osmosis Systemwith Energy Recovery (TDS = 55,000 ppm)

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Drainage

1st Pass of Reverse Osmosis

Membrane Degasser System

Continuous Electrodeionization

System (CEDI)

Feed Tank

Product Water

Feed Water Tank

Turbidity Filters

Filter Water Safety Filters

Drain Tank

Drainage

CIP Pump

CIP andFlush Tank

Energy RecoverySystem

High Pressure Pumps

ProductWater

ElectricalPanel

Feed Pumps

1,200 m3/day Ultrapure Water to Feed Boilers in Power Plant Mobile Containerized Brackish Water Reverse Osmosis System

600 m3/day water for general use - Mobile Sea Water Reverse Osmosis Systemwith Energy Recovery (TDS = 55,000 ppm)

PRE-TREATMENT EQUIPMENT (RO)• Dosing systems for chlorination, scaling protection and de-chlorination

• Multimedia Pressure Filters for removal of turbidity,suspended solids, iron, manganese and other pollutants from the feed water to protect the membranes

• Filters, UF (modern filtration method by special mem-branes) for the removal of bacteria, viruses, organic load, big molecular weight proteins, turbidity and suspended solids

• Dechlorination for the protection of the membranes from oxidation caused by free chlorine, either by dosing sodium metabisulphite or by active carbon filters. Active carbon filters are also used for removal of organic substances

• Final filtration of the water before entering the mem-branes

Dosing Pump Multimedia PressureFilters

Ultra FiltrationCarbon Steel

Multimedia Filter Safety Filter

OPTIONAL EQUIPMENT (RO)• Clean in Place System for the chemical cleaning of the

membranes, when needed. The same system can be used for the automatic flushing of the reverse osmosis unit with clean water, when stops

• On-line measuring instruments for pH, Redox, free chlo-rine, conductivity at the critical points of the process

Metering Controlers

The Pre-Treatment Equipment mentioned above, as well as the appropriate filtration materials recom-mended by TEMAK, should be used in order to secure the safe and continuous operation of the desalina-tion plant. The guarantee offered by TEMAK, is valid only under the above preconditions.

POST-TREATMENT EQUIPMENT (RO)The Post-Treatment Equipment depends on the specifica-tions for the product water of each application. Indicatively, this could include:

• Rehardening filters for the enrichment of the product wa-ter with necessary hardness and alkalinity, where need-ed (i.e. drinking water)

• pH regulation with the use of acid and / or soda, depend-ing on the specifications

• Double pass reverse osmosis, where the application re-quires water of extremely low conductivity i.e. pharma-ceuticals, hemodialysis units, power plants etc.

• Disinfection by dosing sodium hypochlorite or UV, so that the final produced water is protected from microbial growth

RehardeningFilter

Double Pass Reverse Osmosis

Acid Dosing Pump

Ultra VioleteDisinfection Systerm

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MONITORING THE RO OPERATIONTEROC is a software developed exclusively by TEMAK to monitor the operation and efficiency of any water desali-nation plant, using the method of Reverse Osmosis.

TEROC can electronically record, print, calculate and cre-ate graphs of the:

• Feed water quality• Drop of pressure across the RO membranes • Duration of the RO operation• Aging of the membranes through the normalization of

the permeate water flow rate and the salts’ passage

ADVANTAGES

• Modern and advanced design,custom-made solutions

• Excellent quality of construction materials

• Automatic multimedia pressurefilters, specific to each system

• Low energy consumption

• Low cost of operation• Design adapted to available space• Automatic and control systems by

PLC and option of remote controlof the plant (SCADA)

• Timely and immediate technical support

CONTROLLING THE RO SYSTEMThe RO-T4F panel controls the Reverse Osmosis System and its main characteristics are:

• Automation and Control System for Reverse Osmosis Water Treatment Plants

• Low Voltage Panel (24VAC) - Separate from the electri-cal panel - User Safety

• Menu in two languages, English and Greek• Communication through four lines display and through

mimic diagram on the panel front view• Possibility of connection with a PC (for remote monitoring)• Connection to GSM• Ability to update with a message to up to three phone

numbers if alarm occurs

Samples of the graphs are shown below:

Date

Pres

sure

Dro

p, b

ar9,0

8,0

7,0

6,0

5,0

4,0

3,0

2,0

1,0

0,028/4/14 14/11/14 1/6/15 18/12/15 6/7/16 22/1/17 10/8/17 26/2/18

Product Water Conductivity

Date

Cond

ucti

vity

μS/

cm

250

200

150

100

50

0

28/4/14 14/11/14 1/6/15 18/12/15 6/7/16 22/1/17 10/8/17 26/2/18

Pressure Drop at the RO membranes

Brackish Water Sea Water

ModelMax Production

(m3/24hrs)Model

Max Production(m3/24hrs)

SYTBW 11 2,4 SYTSW 11 2,1SYTBW 12 4,8 SYTSW 12 4,1SYTBW 21 7,2 SYTSW 13 5,7SYTBW 22 13,9 SYTSW 14 6,9SYTBW 23 19,9 SYTSW 16 9,12SYTBW 24 25,2 SYTSW 18 10,56SYTBW 25 30,7 SYTSW 19 11,04SYTBW 26 39,8 SYTSW 22 10,5SYTBW 28 50,4 SYTSW 23 14,4SYTBW 32* 67,2 SYTSW 24 17,7SYTBW 33* 100,8 SYTSW 26 22,0SYTBW 34* 127,2 SYTSW 32* 38,4SYTBW 36* 177,6 SYTSW 33* 52,8SYTBW 38* 225,6 SYTSW 34* 64,8

SYTSW 36* 79,2SYTSW 38* 105,6

Complete Reverse Osmosis Systems (RO)

• The reject water quantity and absorbed power depend on the quality (TDS) and temperature of the feed wa-ter. Exclusive design, manufacturing and assembly by specialized personnel

• Desalination units completely pre-fabricated and fully tested for operation and control, ready to be installed

and set in operation• High quality materials used• Reliability and guaranteed efficiency• Easy installation and space saving• Minimal cost of installation and operation

* Pre-treatment filters are not included and selected according to each project specifications (concerning SYTBW3 & SYTSW3 models)

Note: Brackish Water Systems are offered with the option of blending the permeate water from the Reverse Os-mosis Unit with of feed water

SYTBW 1 SYTBW 2 SYTBW 3

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TEMAK’s Ιndicative Ιnstallations

Power Plant - RO with Electrodeionization System (CEDI)Capacity: (2 x 243) m3/dayFeed Water Quality: Brackish WaterProduct Water Quality: Ultrapure Water to Feed Boilers

ResidenceCapacity: 125 m3/dayFeed Water Quality: Sea WaterProduct Water Quality: Potable

HospitalProduction: 35 m3/dayFeed Water Quality: NetworkProduct Water: Hemodialysis Standards

PharmaceuticalCapacity: 4 m3/hFeed Water Quality: Brackish WaterProduct Water Quality: Ultrapure

MunicipalityCapacity: 2.000 m3/dayFeed Water Quality: Sea WaterProduct Water Quality: Potable

HotelCapacity: 500 m3/dayFeed Water Quality: Sea WaterProduct Water Quality: Potable

MunicipalityCapacity: 1.800 m3/dayFeed Water Quality: Sea WaterProduct Water Quality: Potable

MunicipalityCapacity: 10.000 m3/dayFeed Water Quality: Sea WaterProduct Water Quality: Potable

“Experts in Processing Water”